Home / 480,664.04-721,429.34-256,211.40

Finding the Fourth Proportional to 480,664.04, 721,429.34 and 256,211.40

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Solution

The fourth proportional to 480,664.04, 721,429.34 and 256,211.40 is: 384,548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,664.04 : 721,429.34 = 256,211.40 : x
  2. Step 2: Convert to fraction form
    480,664.04/721,429.34 = 256,211.40/x
  3. Step 3: Cross multiply
    480,664.04x = 721,429.34 × 256,211.40
  4. Step 4: Simplify right side
    480,664.04x = 184,838,421,202.48
  5. Step 5: Solve for x
    x = 184,838,421,202.48/480,664.04
  6. Step 6: Final answer
    x = 384,548.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.